convertkit / includes / class-convertkit-cache-plugins.php

class-convertkit-cache-plugins.php in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages 2.4.7, at includes/class-convertkit-cache-plugins.php

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1	<?php
2	/**
3	* ConvertKit Caching Plugins class.
4	*
5	* @package ConvertKit
6	* @author ConvertKit
7	*/
8
9	/**
10	* Programmatically changes settings for third party caching Plugins which interfere with Forms
11	* and Landing Pages loading correctly.
12	*
13	* @since 2.4.6
14	*/
15	class ConvertKit_Cache_Plugins {
16
17	/**
18	* Holds external hosts to exclude from CSS and JS minification.
19	*
20	* @since 2.4.6
21	*
22	* @var array
23	*/
24	public $exclude_hosts = array(
25	'cdnjs.cloudflare.com',
26	'pages.convertkit.com',
27	'convertkit.com',
28	);
29
30	/**
31	* Holds internal JS paths to exclude from JS minification.
32	* Supports regular expressions.
33	*
34	* @since 2.4.6
35	*
36	* @var array
37	*/
38	public $exclude_plugin_js = array(
39	'convertkit/resources/frontend/js/(.*).js',
40	);
41
42	/**
43	* Constructor
44	*
45	* @since 2.4.6
46	*/
47	public function __construct() {
48
49	// Jetpack Boost: Exclude Forms from JS defer.
50	add_filter( 'convertkit_output_script_footer', array( $this, 'jetpack_boost_exclude_js_defer' ) );
51	add_filter( 'convertkit_resource_forms_output_script', array( $this, 'jetpack_boost_exclude_js_defer' ) );
52
53	// LiteSpeed: Exclude Forms from JS defer.
54	add_filter( 'convertkit_output_script_footer', array( $this, 'litespeed_cache_exclude_js_defer' ) );
55	add_filter( 'convertkit_resource_forms_output_script', array( $this, 'litespeed_cache_exclude_js_defer' ) );
56
57	// Perfmatters: Exclude Forms from Delay JavaScript.
58	add_filter( 'convertkit_output_script_footer', array( $this, 'perfmatters_exclude_delay_js' ) );
59	add_filter( 'convertkit_resource_forms_output_script', array( $this, 'perfmatters_exclude_delay_js' ) );
60
61	// Siteground Speed Optimizer: Exclude Forms from JS combine.
62	add_filter( 'convertkit_output_script_footer', array( $this, 'siteground_speed_optimizer_exclude_js_combine' ) );
63	add_filter( 'convertkit_resource_forms_output_script', array( $this, 'siteground_speed_optimizer_exclude_js_combine' ) );
64
65	// WP Rocket: Disable Caching and Minification on Landing Pages.
66	add_action( 'convertkit_output_landing_page_before', array( $this, 'wp_rocket_disable_caching_and_minification_on_landing_pages' ) );
67
68	// WP Rocket: Exclude Forms from Delay JavaScript execution.
69	add_filter( 'convertkit_output_script_footer', array( $this, 'wp_rocket_exclude_delay_js_execution' ) );
70	add_filter( 'convertkit_resource_forms_output_script', array( $this, 'wp_rocket_exclude_delay_js_execution' ) );
71
72	}
73
74	/**
75	* Disable JS defer on ConvertKit scripts when the Jetpack Boost Plugin is installed, active
76	* and its "Defer Non-Essential JavaScript" setting is enabled.
77	*
78	* @since 2.4.6
79	*
80	* @param array $script Script key/value pairs to output as <script> tag.
81	* @return array
82	*/
83	public function jetpack_boost_exclude_js_defer( $script ) {
84
85	return array_merge(
86	$script,
87	array(
88	'data-jetpack-boost' => 'ignore',
89	)
90	);
91
92	}
93
94	/**
95	* Disable JS defer on ConvertKit scripts when the LiteSpeed Cache Plugin is installed, active
96	* and its "Load JS Deferred" setting is enabled.
97	*
98	* @since 2.4.6
99	*
100	* @param array $script Script key/value pairs to output as <script> tag.
101	* @return array
102	*/
103	public function litespeed_cache_exclude_js_defer( $script ) {
104
105	return array_merge(
106	$script,
107	array(
108	'data-no-defer' => '1',
109	)
110	);
111
112	}
113
114	/**
115	* Exclude ConvertKit scripts from Perfmatters' "Delay JS" setting.
116	*
117	* @since 2.4.7
118	*
119	* @param array $script Script key/value pairs to output as <script> tag.
120	* @return array
121	*/
122	public function perfmatters_exclude_delay_js( $script ) {
123
124	add_filter(
125	'perfmatters_delay_js_exclusions',
126	function ( $exclusions ) use ( $script ) {
127
128	$exclusions[] = $script['src'];
129	return $exclusions;
130
131	}
132	);
133
134	// Return original script.
135	return $script;
136
137	}
138
139	/**
140	* Disable JS combining on ConvertKit scripts when the Siteground Speed Optimizer Plugin is installed, active
141	* and its "Combine JavaScript Files" setting is enabled.
142	*
143	* @since 2.4.6
144	*
145	* @param array $script Script key/value pairs to output as <script> tag.
146	* @return array
147	*/
148	public function siteground_speed_optimizer_exclude_js_combine( $script ) {
149
150	add_filter(
151	'sgo_javascript_combine_excluded_external_paths',
152	function ( $excluded_paths ) use ( $script ) {
153
154	$excluded_paths[] = $script['src'];
155	return $excluded_paths;
156
157	}
158	);
159
160	// Return original script.
161	return $script;
162
163	}
164
165	/**
166	* Disable caching and minification when a WordPress Page configured to display a
167	* ConvertKit Landing Page is viewed.
168	*
169	* @since 2.4.6
170	*/
171	public function wp_rocket_disable_caching_and_minification_on_landing_pages() {
172
173	add_filter( 'rocket_minify_excluded_external_js', array( $this, 'exclude_hosts_from_minification' ) );
174	add_filter( 'rocket_exclude_css', array( $this, 'exclude_hosts_from_minification' ) );
175	add_filter( 'rocket_exclude_js', array( $this, 'exclude_local_js_from_minification' ) );
176	add_filter( 'do_rocket_lazyload', '__return_false' );
177
178	}
179
180	/**
181	* Disable WP Rocket's "Delay JavaScript execution" on ConvertKit scripts.
182	*
183	* @since 2.4.7
184	*
185	* @see https://docs.wp-rocket.me/article/1349-delay-javascript-execution
186	*
187	* @param array $script Script key/value pairs to output as <script> tag.
188	* @return array
189	*/
190	public function wp_rocket_exclude_delay_js_execution( $script ) {
191
192	return array_merge(
193	$script,
194	array(
195	'nowprocket' => '',
196	)
197	);
198
199	}
200
201	/**
202	* Appends the $exclude_hosts property to an array of existing hosts excluded from
203	* minification.
204	*
205	* @since 2.4.6
206	*
207	* @param array $hosts External hosts to ignore.
208	* @return array
209	*/
210	public function exclude_hosts_from_minification( $hosts ) {
211
212	return array_merge( $hosts, $this->exclude_hosts );
213
214	}
215
216	/**
217	* Appends the $exclude_plugin_js property to an array of existing JS files excluded from
218	* minification.
219	*
220	* @since 2.4.6
221	*
222	* @param array $scripts Internal JS scripts to ignore.
223	* @return array
224	*/
225	public function exclude_local_js_from_minification( $scripts ) {
226
227	return array_merge( $scripts, $this->exclude_plugin_js );
228
229	}
230
231	}
232